A study to compare the knowledge of school students before and after seeing a media campaign about the health risks of chewing khat

ISRCTN ISRCTN36908722
DOI https://doi.org/10.1186/ISRCTN36908722
Submission date
30/10/2024
Registration date
06/11/2024
Last edited
11/12/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Other
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Khat is a green leaf with amphetamine effects commonly chewed in the Khat Belt region and the southern Arabian Peninsula. It is well-established in the literature that habitual khat chewing is associated with negative impacts on oral, general, and mental health. In the past, khat chewing was regulated by social norms, including the expectation that chewers should be over 18 years old and that khat chewing should be practiced after completing daily work. However, over the past 20 years, this behavior has spiralled out of control, with even school children engaging in khat chewing. It is well established that health-related risk behaviours begin in or before adolescence and schools have been used as venues for prevention risk behaviours, e.g., tobacco. Therefore, this study’s main aim was to evaluate the effectiveness of an awareness programme on the adverse health risks of khat chewing (AHRKC) among secondary school students. In addition, the study aimed to explore the variables associated with post-intervention awareness.

Who can participate?
Students aged 15-22 years were included in the study if they attended public secondary schools in Aden City, were registered in the second level of study for the 2013/2014 academic year, had resided in Aden for at least the last 2 years, were willing to participate and be consented, and were of Yemeni nationality. Students with special needs were excluded due to a lack of funds to support their participation, as were those of non-Yemeni nationality.

What does the study involve?
Students are allocated to one of the groups of the study (intervention or control group). Both groups at the baseline phase filled out the same questionnaire about the awareness of the impact of khat chewing and data about participants was obtained.
The intervention started immediately after the baseline measurements. The intervention was conducted among the intervention group for a 3-month anti-khat campaign, highlighting the harm associated with khat chewing and involving an educational programme (lectures and seminars) and printed mass media (billboards, posters, brochures, and wall magazines). As there were no TV facilities in Aden schools, broadcasts were conducted using documentary films and motion pictures that interpreted factual material for educational or entertainment purposes. In addition, announcements were made during morning assemblies. There were four billboards, 13 posters, two types of brochures (one for males, the other for females), and various wall magazines in the intervention schools delivering messages about the harmful effects of khat chewing. A documentary movie was produced using the data show technique to substitute for TV in schools without such facilities. Students were required to collect information about the khat plant from the internet to be displayed in the wall magazines and presented during the morning assembly. Additionally, a specialist in public health delivered an educational programme consisting of lectures and seminars. Each educational session lasted approximately 35 minutes and involved a PowerPoint presentation using the data show technique. Both groups were evaluated after 3 months regarding their awareness of khat chewing impacts on health using the same questionnaire used in the baseline phase.

What are the possible benefits and risks of participating?
All groups receive educational awareness about the adverse impact of khat on health. At the conclusion of the study, all intervention materials and sessions were delivered to control groups if they wished to benefit and to ensure ethical compliance. By taking part in this study there are no risks of physical injury or harm. The intervention consists of questionnaires that guarantee the confidentiality of the information obtained and all the guidelines of the Helsinki Declaration were followed.

Where is the study run from?
The study is run by the University of Aden and takes place in four public schools located in Khur-Maksar, Shaikh Outhman Al-Mualla and Al-Mansura in Aden, Yemen.

When is the study starting and how long is it expected to run for?
January 2012 to December 2024

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Saba Kassim, skassim@taibahu.edu.sa

Contact information

Dr Saba Kassim
Public, Scientific, Principal Investigator

Taibah University
Dental Public Health
AlMadinah AlMunawwarah
42353
Saudi Arabia

ORCiD logoORCID ID 0000-0001-6236-3390
Phone +966 (0)535558878
Email skassim@taibahu.edu.sa

Study information

Study designMulticentered interventional double-blinded randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)School
Study typePrevention, Quality of life
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleImpact of mass media education campaign on school students’ awareness of khat chewing adverse health risks: a pre-post experimental study in Aden, Yemen
Study acronymAHRKC
Study objectivesIt is hypothesized that implementing a mass media education campaign would enhance school students’ awareness of khat chewing's adverse health risks (AHRKC) compared to students in the control group and that this awareness would be associated with sociodemographic characteristics and awareness of AHRKC.
Ethics approval(s)

Approved 26/01/2013, University of Aden Faculty of Medicine and Health Sciences Ethical Approval Committee (PO Box 878, Crater, Aden, 8916162, Yemen; + 967 (0)2 236625 / 231763; info@adenmedicalfaculty.com), ref: 20131026

Health condition(s) or problem(s) studiedPrevention of khat chewing among school children
InterventionMass media education campaign on school students’ awareness of khat chewing adverse health risks

This study was conducted in the city of Aden, Yemen. Four of the eight districts in Aden were randomly selected using a simple multistage sampling technique involving a lottery box. Subsequently, two of these four districts were randomly chosen to serve as intervention sites, while the remaining two were designated as control sites. As a result, Khur-Maksar and Shaikh Outhman were selected as the intervention districts, and Al-Mualla and Al-Mansura were selected as the control districts. The final step involved selecting students from both intervention and control schools.

At the beginning of the study both groups answer self-administered questionnaires about the adverse impacts of khat chewing on health. The intervention group for the subsequent three months are exposed to an awareness campaign about the impacts of khat. By the end of the 3 months both groups were assessed again about awareness of khat impacts using the same baseline questionnaire.
Intervention typeOther
Primary outcome measureAwareness of the adverse effects of khat chewing, measured using a relevant questionnaire that was used by the International Tobacco Control at baseline and after 3 months
Secondary outcome measuresFactors associated with enhanced awareness of adverse health effects of khat chewing, measured using a relevant questionnaire that was used by the International Tobacco Control at baseline and after 3 months
Overall study start date01/01/2012
Completion date01/12/2024

Eligibility

Participant type(s)Learner/student
Age groupChild
Lower age limit15 Years
Upper age limit22 Years
SexBoth
Target number of participants450
Total final enrolment427
Key inclusion criteria1. Students attending public secondary schools in Aden City
2. Registered in the second level of study for the 2013/2014 academic year
3. Resided in Aden for at least the last 2 years
4. Yemeni nationality
Key exclusion criteria1. Students with special needs were excluded due to lack of funds to support their participation
2. Non-Yemeni nationality
3. Refused to be consented
Date of first enrolment01/02/2013
Date of final enrolment01/05/2013

Locations

Countries of recruitment

  • Yemen

Study participating centre

Four schools in Aden city, Yemen
Aden
8916162
Yemen

Sponsor information

University of Aden
University/education

Faculty of Medicine and Health Sciences
PO Box 878
Crater
Aden
8916162
Yemen

Phone +967 (0)2 236625 / 231763
Email info@adenmedicalfaculty.com
ROR logo "ROR" https://ror.org/02w043707

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/01/2025
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal.
IPD sharing planThe dataset generated during the current study will be available upon request from the principal investigator Dr Mohamed AlKaf (msakaff@gmail.com)

Editorial Notes

11/12/2024: The plain English summary was corrected to match the age range in the inclusion criteria.
06/11/2024: Study's existence confirmed by the University of Aden Faculty of Medicine and Health Sciences Ethical Approval Committee.